Visualizing closed loop poles

Add or remove zeros and poles by left- and right-clicking.

K = 10⁰

The blue point z is mapped to the w-plane by the function KG(z). Similarly, a contour is mapped to a plot.

Interaction mode:

z = 0
Interactive
Orbit a zero
Orbit a pole
Nyquist contour

Shows the zeros of 1+KG(z) = 0 for every positive K.

Made by Bram Geelen @ ESAT - STADIUS.
Source code at github.com/geelenb/Cauchy
Uses Math.js, fraction.js complex.js and polynomial.js .